nixos/{hyprland, wayland-common}: disable wlr portal for hyprland, enable xdg autostart for all wayland compositors

[JohnRTitor]

Description of changes

Hyprland has its own portal xdg-desktop-portal-hyprland and does not need the wlr portal.

As a follow up to #240989,

• Adds wlr-portal override of wayland-session module (enabled by default)
• Disable it for hyprland module

Additionally, enable xdg autostart service for Wayland Window compositors as unlike DEs, they do not handle it themselves.

Things done

• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• 24.11 Release Notes (or backporting 23.11 and 24.05 Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
• Fits CONTRIBUTING.md.

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CC: @fufexan @SuperSandro2000

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[fufexan]

LGTM.

[JohnRTitor]

@fufexan is there a reason you are not in meta.maintainers of nixos/hyprland module? :)

[fufexan]

AFAIK it's not required to have a maintainer for a module, so I didn't add myself when I created it.
Feel free to add me though, it may allow for greater visibility in issues.

[JohnRTitor]

Feel free to add me though, it may allow for greater visibility in issues.

Exactly my point. Done

[JohnRTitor]

I plan to backport this to stable as well, but #314978 should be merged for backport to work.

[nixos-discourse]

This pull request has been mentioned on NixOS Discourse. There might be relevant details there:

https://discourse.nixos.org/t/prs-ready-for-review/3032/4014

[JohnRTitor]

@fufexan perhaps also add services.xserver.desktopManager.runXdgAutostartIfNone = true to this?

From the description:

Whether to run XDG autostart files for sessions without a desktop manager (with only a window manager), these sessions usually don’t handle XDG autostart files by default.

[fufexan]

@fufexan perhaps also add services.xserver.desktopManager.runXdgAutostartIfNone = true to this?

From the description:

Whether to run XDG autostart files for sessions without a desktop manager (with only a window manager), these sessions usually don’t handle XDG autostart files by default.

Might make sense. Would it conflict with the HM option? It is being set to true by default in the HM module for Hyprland.

[JohnRTitor]

The mechanism behind the option on Nixpkgs is just a systemd service.

I feel like Home Manager, by itself, has a nice mechanism for avoiding conflicts.
For example, some bash and zsh options are enabled by default in nixos configuration, but if their counterpart options are disabled in home manager module, NixOS respects and prioritises Home manager modules.

I believe if any actions are to be needed, they need to be performed on the Home Manager side. Home manager bases its development off Nixpkgs master, not the other way around.

[JohnRTitor]

I added it to the common wayland-session module, so that other WMs can utilise this as well.

[Mic92]

@fufexan is this pull request good to go?

[fufexan]

@Mic92 yes, LGTM.

[JohnRTitor]

Thanks! @Mic92 would love to see this merged.

[BhasherBEL]

Is there a particular reason for which this change isn't flagged with a lib.mkDefault? In my configuration, I set it to true (without mkForce or mkDefault) but it now has conflicting definitions since the last update.

error: The option `xdg.portal.wlr.enable' has conflicting definition values:
- In `/nix/store/aacfsg6r005hi7gna3s1vlpzrg5v5264-source/hosts/shared/pc/hyprland.nix': true
- In `/nix/store/8s55w0927lh3mdbkxf434zb0c5hqsz8z-source/nixos/modules/programs/wayland/hyprland.nix': false
Use `lib.mkForce value` or `lib.mkDefault value` to change the priority on any of these definitions.

[eclairevoyant]

FYI you don't need the wlr portal if you use hyprland. The hyprland portal was forked from the wlroots one.

[SuperSandro2000]

Is there a particular reason for which this change isn't flagged with a lib.mkDefault?

That people will notice it and hopefully remove it.

[wxlyyy]

services.flatpak.enable = true;

       error:
       Failed assertions:
       - To use Flatpak you must enable XDG Desktop Portals with xdg.portal.enable.

[eclairevoyant]

Please create a new issue with config details @wxlyyy